Sorry, I lost your molecule, please back up and select it again.
return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for (Ethoxy radical)

using model chemistry: B97D3/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B97D3/cc-pVTZ
 hartrees
Energy at 0K-154.337018
Energy at 298.15K-154.341826
HF Energy-154.337018
Nuclear repulsion energy74.100496
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B97D3/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3052 3009 26.41      
2 A' 2981 2939 16.33      
3 A' 2788 2749 35.25      
4 A' 1464 1444 4.71      
5 A' 1370 1351 14.87      
6 A' 1350 1331 27.28      
7 A' 1276 1259 16.80      
8 A' 1071 1056 4.25      
9 A' 1056 1041 19.61      
10 A' 863 850 1.85      
11 A' 427 421 7.30      
12 A" 3062 3020 22.10      
13 A" 2785 2746 10.40      
14 A" 1454 1434 5.98      
15 A" 1196 1179 0.00      
16 A" 834 822 0.11      
17 A" 257 254 24.50      
18 A" 101 100 11.98      

Unscaled Zero Point Vibrational Energy (zpe) 13693.6 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 13501.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B97D3/cc-pVTZ
ABC
1.34192 0.31597 0.28211

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.040 -0.618 0.000
C2 0.000 0.502 0.000
O3 -1.305 0.126 0.000
H4 2.056 -0.206 0.000
H5 0.921 -1.248 0.887
H6 0.921 -1.248 -0.887
H7 0.149 1.196 0.861
H8 0.149 1.196 -0.861

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7 H8
C11.52812.45991.09611.09431.09432.19682.1968
C21.52811.35772.17422.16692.16691.11621.1162
O32.45991.35773.37692.76172.76171.99971.9997
H41.09612.17423.37691.77771.77772.51872.5187
H51.09432.16692.76171.77771.77332.56313.1023
H61.09432.16692.76171.77771.77333.10232.5631
H72.19681.11621.99972.51872.56313.10231.7225
H82.19681.11621.99972.51873.10232.56311.7225

picture of Ethoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 115.735 C1 C2 H7 111.671
C1 C2 H8 111.671 C2 C1 H4 111.250
C2 C1 H5 110.234 C2 C1 H6 110.234
O3 C2 H7 106.522 O3 C2 H8 106.522
H4 C1 H5 108.372 H4 C1 H6 108.372
H5 C1 H6 108.297 H7 C2 H8 103.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 C 0.047      
3 O -0.229      
4 H 0.070      
5 H 0.091      
6 H 0.091      
7 H 0.087      
8 H 0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.948 0.631 0.000 2.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.310 0.316 0.000
y 0.316 -18.640 0.000
z 0.000 0.000 -18.104
Traceless
 xyz
x -3.938 0.316 0.000
y 0.316 1.567 0.000
z 0.000 0.000 2.371
Polar
3z2-r24.741
x2-y2-3.670
xy0.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.167 -0.038 0.000
y -0.038 4.539 0.000
z 0.000 0.000 4.292


<r2> (average value of r2) Å2
<r2> 51.371
(<r2>)1/2 7.167